... ROSH 4:packing:spool or coil 5:delivery:15 days resistance alloy constantan wire :CuNi44, CuNi40, CuNi30, CuNi23,CuNI19,CuNi10, CuNi6, CuNi4 ... TIME: 15main specifications and main technical parameter of resistance alloy constantan wire main property type NC003 Cuni1NC005 CuNI2NC010 CuNI6NC012 CuNi8NC015 CuNI10NC020 ... 0.40±5%0.49±5%temperature coefficient of resistance <100<120<60<57<50<38<25<16< ...